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Yokogawa EJA310A User Manual

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CONTENTS

IM 01C21D01-01E

8.4

Displaying Data Using the BT200 ..................................................... 8-15

8.4.1

Displaying Measured Data ......................................................... 8-15

8.4.2

Display Transmitter Model and Specifications ........................... 8-15

8.5

Self-Diagnostics ................................................................................ 8-16

8.5.1

Checking for Problems ............................................................... 8-16

(1) Identifying Problems with BT200 ................................................ 8-16
(2) Checking with Integral Indicator ................................................. 8-17

8.5.2

Errors and Countermeasures ..................................................... 8-18

9.

MAINTENANCE ............................................................................................. 9-1

9.1

Overview ............................................................................................. 9-1

9.2

Calibration Instruments Selection ....................................................... 9-1

9.3

Calibration ........................................................................................... 9-1

9.4

Disassembly and Reassembly ............................................................ 9-3

9.4.1

Replacing the Integral Indicator ................................................... 9-3

9.4.2

Replacing the CPU Board Assembly ........................................... 9-4

9.4.3

Cleaning and Replacing the Capsule Assembly .......................... 9-5

9.4.4

Replacing the Process Connector Gaskets ................................. 9-6

9.5

Troubleshooting ................................................................................... 9-6

9.5.1

Basic Troubleshooting .................................................................. 9-6

9.5.2

Troubleshooting Flow Charts ....................................................... 9-7

10. GENERAL SPECIFICATIONS .................................................................... 10-1

10.1 Standard Specifications .................................................................... 10-1
10.2 Model and Suffix Codes .................................................................... 10-3
10.3 Optional Specifications ...................................................................... 10-6
10.4 Dimensions ........................................................................................ 10-9

Customer Maintenance Parts List

DPharp EJA Series Transmitter Section ........................ CMPL 01C21A01-02E
Model EJA310A, EJA430A and EJA440A
Absolute and Gauge Pressure Transmitter ................... CMPL 01C21D00-01E

REVISION RECORD

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